Denny Bourdo portrays Theresa's nurse in "Jughead". His character also appeared as a rehabilitation therapist in the Delerue Center for Rehabilitation where Locke was given rehab in "Cabin Fever", though he was only barely visible in a few shots (and not at all in the standard definition broadcast). (His character was not Locke's physical therapist, but rather, a different therapist seen in the background.)